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Seal structurally valid · PQC signatures missing or unverified
Hash chain verified, but PQC signature verification did not pass. This may be expected for benchmark archive seals (PQC pre-signing limited to interactive seals in Phase 3).

Seal identity

Seal ID
HSCALE-BENCH-HERON-PHI-QAOA-4Q-d7o1v2u2jamc73bp30fg
Scope
phi_qaoa · 4q · 4096 shots · real QPU · ibm_fez (Heron 2, 156q device)
Issuing agent
EpochCore benchmark campaign
Issued at
2026-04-28T02:47:26.154784+00:00 · Tue, 28 Apr 2026 02:47:26 GMT
RAS Root
40668c787c463ca5
Genesis Seal
437EC394E97ACCE9

Hash chain

9d9b83f41ec032ffab47494aebdcd5917537c3ece5bdbb8de0c1fa25da697c01
→
HSCALE-BENCH-HERON-PHI-QAOA-4Q-d7o1v2u2jamc73bp30fg
BLAKE3
49df35c3766eada8637e40b66e1491566b92daa7e4268cc121a6e0da781525f2
SHA3-512
9ed9856887fb5fd921fabc60006ef2b08bbba631a57248dc6851a6cd33c28f9b

Triple-signature provenance

Ed25519 (classical) structurally valid
Public key: ed25519:GJFdNhb8CgAiNjet45Td/tCglLue4U9pOqu25h3geYE=
8c9B461yEOhJH24WI1NHGITfaEa08auNc0znVLNrTJr/HFXQeV68JvW6FM7ihQAQCrpgv0zjmsG2AXM8qfDVDg==
ML-DSA-65 (NIST FIPS 204 lattice PQC) no signature (archive)
Module-Lattice-Based Digital Signature Algorithm — quantum-resistant via lattice problem hardness (CRYSTALS-Dilithium). Verification deferred for archival benchmark seals.
ML-DSA-65 signature payload — 4627 bytes
SLH-DSA-SHA2-128f (NIST FIPS 205 hash-based PQC) no signature (archive)
Stateless Hash-Based Digital Signature Algorithm — quantum-resistant via hash function preimage hardness (SPHINCS+). Verification deferred for archival benchmark seals.
SLH-DSA-SHA2-128f signature payload — 0 bytes

Base L2 on-chain anchor

Chain ID
0 (Base mainnet)
Block height
0
Anchor TX
View on Basescan ↗

Sealed payload (summary)

phi_qaoa on real QPU · ibm_fez (Heron 2, 156q device). 4 measured qubits, 4096 shots, transpiled depth 41. IBM job d7o1v2u2jamc73bp30fg (DONE) — resolves in the published 1,605-job Heron corpus at molecule-gen.org/evidence. Measured: L1_from_uniform 0.26123 · chi2_uniform 439.5 · top 1110 @ 0.100098. Receipt receipt_ibm_fez_phi_qaoa_d7o1v2u2jamc73bp30fg.json, sha256 49df35c3766eada8637e40b66e1491566b92daa7e4268cc121a6e0da781525f2. Ed25519 signature is over the 32-byte hex-decoded seal_hash and verifies against the published key; ML-DSA-87 present. Not anchored to an L2 chain — this is a signed archive receipt, not an on-chain record.

Programmatic API

Need machine-readable verification? Use the JSON API:
GET
https://epochcoreqcs.com/api/verify/HSCALE-BENCH-HERON-PHI-QAOA-4Q-d7o1v2u2jamc73bp30fg
Returns full seal envelope + verification status as application/json. CORS-enabled. Public.